diff --git a/README.md b/README.md
index db8212d..dec3d5a 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,7 @@ This creates the pdf `ws.pdf` in your current directory
 | 118 | [Percentage difference](https://github.com/lukew3/mathgenerator/blob/main/mathgenerator/funcs/basic_math/percentage_difference.py) | What is the percentage difference between 53 and 90? | 51.75% | percentage_difference | `maxValue=200` `minValue=0`  |
 | 119 | [Percentage error](https://github.com/lukew3/mathgenerator/blob/main/mathgenerator/funcs/basic_math/percentage_error.py) | Find the percentage error when observed value equals 33 and exact value equals 61. | 45.9% | percentage_error | `maxValue=100` `minValue=-100`  |
 | 120 | [Greatest Common Divisor of N Numbers](https://github.com/lukew3/mathgenerator/blob/main/mathgenerator/funcs/basic_math/greatest_common_divisor.py) | GCD(21465961,176654083)= | 1 | greatest_common_divisor | `numbersCount=2` `maximalNumberLimit=10**9`  |
+| 124 | [Is Composite](https://github.com/lukew3/mathgenerator/blob/main/mathgenerator/funcs/basic_math/is_composite.py) | Is 8 composite? | Yes | is_composite | `maxNum=250`|
 ## calculus
 | Id   | Skill | Example problem | Example Solution | Function Name | Kwargs |
 |------|-------|-----------------|------------------|---------------|--------|
diff --git a/mathgenerator/funcs/basic_math/is_composite.py b/mathgenerator/funcs/basic_math/is_composite.py
new file mode 100644
index 0000000..d7c60d8
--- /dev/null
+++ b/mathgenerator/funcs/basic_math/is_composite.py
@@ -0,0 +1,25 @@
+from .__init__ import *
+
+
+def gen_func(maxNum=250, format='string'):
+    a = random.randint(2, maxNum)
+
+    problem = f"Is {a} composite?"
+    if a == 0 or a == 1:
+        solution = "No"
+        return (problem, solution)
+    for i in range(2, a):
+        if a % i == 0:
+            solution = "Yes"
+            return (problem, solution)
+    solution = "No"
+
+    if format == 'string':
+        return problem, solution
+    elif format == 'latex':
+        return "Latex unavailable"
+    else:
+        return a, solution
+
+
+is_composite = Generator('Is Composite', 124, gen_func, ["maxNum=250"])